Tool-securing means.



G. J. CARR.

TOOL SEGURING MEANS.

APPLICATION FILBDVJUNE 1, 1910.

995995@ Patented uae i3, 19M.,

cHARLEsJ. CARR, or CLEVELAND, omo, AssIGNoB. or ONE-HALE 'ro HENRY G.

. TREMMEL, or cLEvELANn, oHIo.

TOOL-SECURING MEANS.

Specication of Letters Patent. Patented June 13, 1911.

4Application filed .Tune 1, 1910. Serial No. 564,448.

, To all whom 'it may concern: I

v fication.

This invention relates to devices for at'- taching a wheel to a spindle or shaft, and it is particulary adapted and intended for use -in connection 'with a polishing orbutiing wheel, and the construction is such that the Wheel may be readily' placed on or removed from the spindle.

The invention includes a spring which acts as a key to hold the wheel on the spindle and to insure rotation thereof Vwith the spindle,- as will be more fully apparent from the following description and the accompanying drawings.

,In the draWings,-Figure 1 vis a longitudinal section of the wheel, mounted on the spindle. Fig. 2 is a plan of the spindle. Fig. 3 is an end view Aof the core or hub of the wheel. Referring specifically to the drawings, A indicates a spindlesor shaft drilled as at H to allow its connection to a drive shaft by meansI of a set screw in the hole Gr. The other end of the shaft has an inclined groove X therein, extending lengthwise along the shaft. This receives a spring key C one end of which is fastened to the shaftby screws B or 'other devices, these fastening devices being located at the shallow or innei1` end of theA roove, so that the heads project beyond the ine pf the shaft.- Near its outer or free end; the spring has an' inverted V- shaped knuckleor projection C', the point ofwhiehyprojects outwardly beyond the line of the shaft.'

Thehub or,I core D of the wheel, which will preferably be made of metal, has an inclined key-way or groove K which is of greatest depth, at the inner end, and which near the outerend has a depression or notch Y of proper shape and in proper position to receive the bend or knuckle C of the spring. The Width of the key-way K is such that the edges of the spring C, as well as the heads of the screws B,f`1t closely therein, and said screwsLin connection with the spring, form a key to lock the shaft and hub against relative rotation. A wooden core E fits onthe hub D, and may be attached thereto in any suitable manner, as by a lug L-tting in a groove M, to insure relative rotation;

and at F are indicated'bristles projecting' from the'eore E. Obviously baiting, polishing or other material may be mounted on the core', according to the nature of the work to be done, and no limitation in this respect is implied. Neither is the particular construction of the hub and wooden core essential tothe invention. The wheel so constructed may be readily placed on the spindie by entering the free end of the spring into the large end ofthe key-way K, and when the wheel is pressed infthe spring will yield until the buckle C reaches the notch D, Where it will lift to engagement, and by such engagement `will prevent the wheel slipping off the end of the spindle; but may be dislodged by smart pull sufficient to compress the spring. The engagement of the screws or other devices B, in the key-way K, as well as thel lateral 'engagement of the spring at the notch D will cause the wheel to rotate with the shaft.

The device provides a simple and effective means of connecting small Wheels Aof any kind to shafts 0r spindles, and will be found particularly useful under conditions demanding frequent change or substitution of different kinds of wheelsl on the same shaft, and has the'advantage that no tools are required to place or remove the wheels.

Having thus described the invention what I claim as new and desire to'secure by Letters Patent is The combination of a spindle having a keyway, a wheel thereon also having a keyway with a notch therein, a spring fastened to the spindle and extending in the key Way in -the spindle and having a, bent portion projecting into said notch, and a 'fastening device connecting the spring to the spindle 5 and projecting into the keyway in the Wheel=` said fastening device and spring forming a key between the-spindle and Wheel.

' In testimony whereof, I do ax my signature in presence of two Witnesses.

' CHARLES?. CARR.

Witnesses: H. G. TREMMEL; STEDMAN J. ROCK-WELL.v 

